The "Cancer Site" box lets you select specific cancer sites. When you select a cancer
site, the query options will update. Query options differ among sites based on the
numbers of observations. When numbers are small, parameter values may be aggregated
or the number of query options reduced. (See
WSCR-DO Technical Notes
for additional detail).

The "Stage At Diagnosis" options are available for only a subset of cancer sites:
Breast (Female), Melanoma of the Skin, and All Cancers Combined. (See
WSCR-DO Technical Notes
for additional detail).